JP2008008125A - Method for making permeable pavement material and permeable molded/machined product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that conventional asphalt pavement has the tendency of making progress in wear resistance and life to cause decrease in wear resistance, exfoliation due to freezing/thawing and cracks, and that the conventional asphalt pavement does not have water permeability. <P>SOLUTION: Capabilities of andesite and crushed stone such as strength, water retaining capability and water cleaning capability are utilized, and a molded/machined product is manufactured. The surface is paved with water permeable concrete to allow rain water to go into the ground. The surface temperature of the pavement using the water permeable concrete is 5-10°C lower than the surface temperature of the asphalt pavement and concrete pavement because of the water retention capacity possessed by the water permeable concrete of a porosity of 13-25.5% and natural evaporation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

Detailed Description of the Invention

  The present invention is a material and construction method patent characterized in that andesite crushed stone, cinnabar sand and river crushed stone are pulverized to a size of 2.0 to 13 mm and used for permeable concrete pavement and permeable molded product. It is an application.

  Existing roadways, sidewalks, plazas, parking lots, etc. are asphalt and concrete pavement, and they are not permeable and flow into the ditches at a time when it rains. The low ground area leads to underfloor flooding and river flooding. Moreover, the existing water-permeable asphalt is a numerical value with a low water permeability of around 12%. In addition, the water-permeable asphalt is clogged due to secular change, and the water permeability is lost in 2 to 3 years. The permeable concrete pavement and flat block of the present invention are not clogged.

Problems to be solved by the invention

    By laying permeable concrete pavement and molded products with andesite crushed stone, cinnabar sand, river crushed stone, revitalization of groundwater, activation of trees, suppression of heat island, and 13 to 25.5 of porosity of permeable concrete % Of rainwater is stored to prevent overflow water from flowing into the side ditches and reduce the amount of discharge, thereby minimizing damage such as underfloor inundation, low ground puddles, and river inundation due to rainwater in houses. It is characterized by being limited to the limit.

Utilizing the properties of andesite crushed stone, dredged sand, and river crushed stone, such as strength, water retention, water purification, etc., manufacturing molded products and laying permeable concrete pavement to reduce rainwater underground . In addition, water-permeable concrete has a porosity of around 23 to 25.5%, water can be stored in the void, and the surface temperature is 5 to 10 degrees compared to asphalt pavement and concrete pavement due to natural evaporation of the stored water. It is characterized by being lowered.
Andesite crushed water retention is porous and water retention characteristic of andesite.
Crushed stone S-5 (No. 7 crushed stone) 5-2.5 Surface dry density 2.674
Bamboo charcoal has water purification and bactericidal properties.

  Crushing andesite crushed stone, cinnabar sand, river crushed stone to a size of 2.0 to 13 mm, and laying a molded permeable concrete flat block of 100-500 width, 100-500 width, 30-80 mm height Thus, rainwater is laid down and 13 to 25.5% of the pavement area is stored, so that the drainage into the gutter is temporarily reduced.

  Moreover, rainwater does not drain into the gutter at once due to the storage effect, thereby reducing typhoon damage. It is characterized by effective use of land by reducing the ditches from the economical aspect to prevent underfloor flooding.

  Laminated concrete laid with andesite crushed stone, cinnabar sand, river crushed stone, and permeable concrete pavement are characterized by color, design pavement and crafted flat block laying in various colors that are also beautiful in the landscape. By utilizing the strength and water retention characteristics of andesite crushed stone, dredged sand, and river crushed stone, and the water permeability, water retention, and porosity characteristics of permeable concrete pavement, it is possible to restore groundwater, activate trees, and suppress heat islands. It is characterized by that.

  For permeable concrete pavement and molded plate using andesite crushed stone, cinnabar sand, river crushed stone, 23 to 25.5% of the construction thickness and the number of square meters with respect to rainwater is the amount of water stored. If the number of paved construction square meters increases, it can be considered as one of the reservoirs, and the land can be used effectively.

  Andesite crushed stone, cinnabar sand, river crushed stone, water permeability and water retaining concrete pavement has the same effect as tame. The heat storage effect can be suppressed by the water storage effect.

  Laying permeable concrete pavement and molded plate with andesite crushed stone, cinnabar sand, river crushed stone is characterized by the reduction of the reservoir and effective use of the ground.

Means for solving the problem

  The present invention is made of andesite crushed stone, cinnabar sand, river crushed stone, permeable concrete pavement, molding processed product, laying groundwater activated concrete pavement through rainwater, suppressing ground subsidence, surface is permeable pavement Since rainwater cannot penetrate and penetrates underground, it is characterized by reducing underfloor inundation and reducing the amount of drainage to the ditches, thereby suppressing river flooding.

The invention's effect

  Safe walking ability, unable to puddle, not slip, suppression of sun reflection, surface temperature is reduced by 5-10 degrees compared to asphalt or concrete pavement. It is characterized by water retention, activation of turf and trees, and suppression of the heat island phenomenon.

  If the construction area increases, the water retention capacity and the amount of water stored will increase in proportion to the construction area, resulting in a significant reduction in the amount of drainage to the side ditches and the economic effect of drastically reducing the side gutter construction costs. River turbulence, underfloor inundation Because it infiltrates rainwater into the ground, it is characterized by revitalization and activation of groundwater.

  The permeable concrete pavement made of andesite crushed stone, cinnabar sand, river crushed stone is cool, gives relief to the heart by eliminating water pool, suppressing reflected heat of sun reflection, activating trees and suppressing heat island. It is characterized by beautiful color pavement, the effect of brightening the natural environment and living environment.

  The inventor manufactured a permeable concrete to be laid with a permeable concrete pavement layer having a thickness of 20 to 80 mm by the construction method of the above embodiment, and the strength test method is a test method defined by JIS, a water permeability test, a bending test. A strength test, a compressive strength test, a water permeability test, and a porosity test were performed. The test conditions are as follows.

  Under the conditions of a temperature of 20 ° C and a humidity of 65%, a tarai-type mortar mixer, (1) 15 kg of Portland cement, (2) any one of andesite crushed stone, dredged sand, and river crushed stone with a diameter of 2.0 to 13 mm 75-90 kg of crushed powder, (3) powdered EVA emulsion resin made of ethylene-vinyl acetate copolymer, Kuraray KRE-68A or 68B (manufactured by Kuraray Trading Co., Ltd.) 5-22% of Portland cement weight, (4) Bamboo charcoal 0.3-1 kg, (5) Antibacterial agent (manufactured by Sinanen Zeomic Co., Ltd.) silver ion, 1-3% of Portland cement weight, (6) 5-6 kg of water, Specimens A, B, and C are used. (A) A cylinder 10 cm × 20 cm for a compressive strength test, (B) a cube 10 cm × 10 cm × 40 cm for a bending strength test, and (C) a cylinder 10 cm × 20 cm for a water permeability test. The compressive strength test was referred to JIS A1108, and the bending strength test was referred to JIS R5201. Permeability test: A specimen is produced by pouring into a mold in the order of 1 to 6 according to the JIS A1218 constant water level permeation test method.

The test results were KRE-68A or KRE-68B, each of which was 28 days old, the compression strength was 167.9 (kg / cm2), the bending strength was 3.5 (kg / cm2), and the porosity was It was 21.4 to 29.0 (%), and the water permeability was 7.19 × 10 ⁻¹ (cm / see).

  In the present invention, andesite crushed stone, cinnabar sand, and river crushed stone are pulverized to 2.0 to 13 mm and processed into permeable concrete pavement, molded product, shaped structure, etc., side gutter, sidewalk, parking lot, open space, house It can be manufactured in surrounding exteriors, gardens, grass pavements, landscape structures, etc.

  Andesite crushed stone, cinnabar sand, river crushed stone are pulverized to 2.0 to 13 mm, and the dimensions of the molded products are all made into molded products corresponding to the site, so the range of use of the processed products is infinite It is characterized by that.

  A special technique is required for the method of manufacturing and demonstrating permeable concrete pavement materials, and the range, especially compression, pressure, etc., are closely related to strength, so large changes occur in the hydraulic conductivity. For this purpose, it is necessary to finish by rolling, compressing, and placing and rolling with a pressure weight of 10 to 120 kg.

  Among the blends of materials, andesite crushed stone, cinnabar sand, and river crushed stone are characterized by using crushed stone wetted with water before mixing with a mixer.

  Permeable concrete placement method, laying the material kneaded with the specified composition on the road surface and laying it with a ruler etc. to the specified thickness, rolling finish with plastering iron, plate rolling finish, roller rolling finish, etc. All are characterized by finishing by rolling, compression and pressure of 10 to 120 kg.

Permeable concrete pavement plan Permeable concrete pavement side view Forming plan laying plan Cross section of permeable concrete molding plate laying construction Model representation (example)

Claims (5)

  Manufacture, blending, and construction of permeable concrete pavement materials that make use of the characteristics of andesite crushed stone, cinnabar sand, and river crushed stone to 2.0 to 13 mm.   A method of permeable concrete paving on sidewalks, promenades, parking lots, plazas, exteriors of houses, gardens, garages, etc., using materials made of andesite crushed stone, cinnabar sand, and river crushed stone.   A method in which flat blocks are molded and laid on the exterior of sidewalks, roads, parks, and houses using materials made of andesite crushed stone, cinnabar sand, and river crushed stone to 2.0 to 13 mm.   An ore rock crushed stone and river crushed stone are pulverized to 2.0 to 13 mm, and the method is characterized by creating molded products, structures and monuments.   The blend of permeable concrete pavement material is ethylene vinyl acetate copolymer, powder EVA emulsion (manufactured by Kuraray Trading Co., Ltd.) Kuraray KRE-68A or 68B mixed with 5-22% of the Portland cement weight, and Portland cement mixed It is characterized in that any one of andesite crushed stone, cinnabar sand, and river crushed stone is mixed in about 3 to 6 times the weight of cement, kneaded with a mixer, and placed into pavement.

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